MAG-LITE ® D-Cell flashlights are the number one choice among emergency, medical and security professionals around the world, and with good reason. MAG-LITEs ® are dependable and durable enough to last a lifetime. In addition, their balanced and efficient lighting system results in truly superior optics. These MAG-LITEs ® come with a spare krypton bulb located in the tail cap. Requires four D batteries, sold separately.